Django Admin-禁止编辑并删除“保存”特定型号的按钮 [英] Django Admin- disable Editing and remove "Save" buttons for a specific model

问题描述

我有一个Django模型，我只想只读。不允许添加和修改。

我已经在ModelAdmin中单独标记了所有字段，并将has_add_permission重写为：

  class SomeModelAdmin（admin.ModelAdmin）：
 def has_add_permission（self，request）：
 return False 
  

有没有类似的 has_edit_permission ？哪些可以禁用删除保存和保存并继续按钮？并用简单的关闭和返回按钮替换。

Django文档只提及只读字段而不是覆盖编辑权限。

解决方案

覆盖 templates / admin / submit_line.html 模板，并按任意所需的按钮。您可以通过将其放在 templates / admin / [app_label] / [model] /submit_line.html 中。

要有条件地显示默认提交行或您的自定义提交行，请覆盖 ModelAdmin.change_view ，并将一个布尔值添加到 extra_context ：

  class MyModelAdmin（admin.ModelAdmin）：
 ... 
 def change_view（self，request，object_id，extra_context = None）：
如果不是request.user.is_superuser：
 extra_context = extra_context或{} 
 extra_context ['readonly'] = True 
 
返回超级（MyModelAdmin，self）.change_view（request，object_id，extra_context = extra_context）
  

I have a Django Model which I wish to be only readonly. No adds and edits allowed.

I have marked all fields readonly and overridden has_add_permission in ModelAdmin as:

class SomeModelAdmin(admin.ModelAdmin):
     def has_add_permission(self, request):
        return False

Is there a similar has_edit_permission? Which can be disabled to remove "Save" and "Save and continue" buttons? And replace by a simple "Close and Return" button.

Django Documentation Only mentions only about read only fields not about overriding edit permissions.

解决方案

Override the templates/admin/submit_line.html template and make the buttons whatever you want. You can do this for only the specific model by putting it in templates/admin/[app_label]/[model]/submit_line.html.

To conditionally show the default submit line or your custom submit line, override ModelAdmin.change_view, and add a boolean to extra_context:

class MyModelAdmin(admin.ModelAdmin):
    ...
    def change_view(self, request, object_id, extra_context=None):
        if not request.user.is_superuser:
            extra_context = extra_context or {}
            extra_context['readonly'] = True

        return super(MyModelAdmin, self).change_view(request, object_id, extra_context=extra_context)

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